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14501920 = 255233389
BaseRepresentation
bin110111010100…
…100000100000
31000021202220011
4313110200200
512203030140
61234454304
7234156436
oct67244040
930252804
1014501920
118205564
124a34394
133009a24
141cd6d56
151416cea
hexdd4820

14501920 has 48 divisors (see below), whose sum is σ = 34496280. Its totient is φ = 5761024.

The previous prime is 14501911. The next prime is 14501923. The reversal of 14501920 is 2910541.

It can be written as a sum of positive squares in 4 ways, for example, as 7595536 + 6906384 = 2756^2 + 2628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14501891 and 14501900.

It is not an unprimeable number, because it can be changed into a prime (14501923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37086 + ... + 37474.

Almost surely, 214501920 is an apocalyptic number.

14501920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14501920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17248140).

14501920 is an abundant number, since it is smaller than the sum of its proper divisors (19994360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14501920 is a wasteful number, since it uses less digits than its factorization.

14501920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 14501920 is about 3808.1386529379. The cubic root of 14501920 is about 243.8607106108.

The spelling of 14501920 in words is "fourteen million, five hundred one thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 233 389 466 778 932 1165 1556 1864 1945 2330 3112 3728 3890 4660 6224 7456 7780 9320 12448 15560 18640 31120 37280 62240 90637 181274 362548 453185 725096 906370 1450192 1812740 2900384 3625480 7250960 14501920